<template>
  <div class="wrapper">
    <!-- header部分 -->
    <header>
      <Back></Back>
      <p>&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;</p>
      <p>在线支付</p>
      <p>&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;</p>
    </header>
    <!-- 订单信息部分 -->
    <h3>订单信息：</h3>
    <div class="order-info">
      <p>
        {{ orders.business.businessName }}
        <i class="fa fa-caret-down" @click="detailetShow"></i>
      </p>
      <p>&#165;{{ finalAmount.toFixed(1) }}</p>
    </div>

    <!-- 订单明细部分 -->
    <ul class="order-detailet" v-show="isShowDetailet">
      <li v-for="item in orders.list">
        <p>{{ item.food.foodName }} x {{ item.quantity }}</p>
        <p>&#165;{{ (item.food.foodPrice * item.quantity).toFixed(1) }}</p>
      </li>
      <li>
        <p>配送费</p>
        <p>&#165;{{ orders.business.deliveryPrice }}</p>
      </li>
      <li>
        <p>积分抵扣</p>
        <p>&#165;{{ (totalpoints * 0.01).toFixed(1) }}</p>
      </li>
    </ul>

    <!-- 积分抵扣选项 -->
    <div class="points-deduction">
      <label>
        <input type="checkbox" v-model="usePoints">
        使用积分抵扣
      </label>
    </div>

    <!-- 支付方式部分 -->
    <ul class="payment-type">
      <li>
        <img src="../assets/walletpay.png">
        <i>
          <input type="radio" id="walletpay" name="paymentMethod" value="钱包支付" v-model="selectedPayment">
          <label for="walletpay"></label>
        </i>
      </li>
      <li>
        <img src="../assets/alipay.png">
        <i>
          <input type="radio" id="alipay" name="paymentMethod" value="支付宝支付" v-model="selectedPayment">
          <label for="alipay"></label>
        </i>
      </li>
      <li>
        <img src="../assets/wechat.png">
        <i>
          <input type="radio" id="wechat" name="paymentMethod" value="微信支付" v-model="selectedPayment">
          <label for="wechat"></label>
        </i>
      </li>
    </ul>
    <div class="payment-button">
      <button @click="toSuccess(orderId, finalAmount.toFixed(0), totalpoints)">确认支付</button>
    </div>

    <!-- 底部菜单部分 -->
    <Footer></Footer>
  </div>
</template>
<script>
import Footer from '../components/Footer.vue';
import Back from "@/components/Back.vue";

export default {
  name: 'Payment',
  components: {
    Back,
    Footer
  },
  data() {
    return {
      orderId: this.$route.query.orderId,
      orders: {
        business: {}
      },
      isShowDetailet: false,
      totalpoints: 0,
      selectedPayment: '钱包支付',
      usePoints: false // 是否使用积分抵扣
    };
  },
  computed: {
    finalAmount() {
      if (this.usePoints) {
        // 如果使用积分抵扣
        let maxPoints = Math.floor(this.orders.orderTotal * 10); // 订单金额的10倍取整
        let usedPoints = Math.min(this.totalpoints, maxPoints); // 实际使用的积分数
        return this.orders.orderTotal - usedPoints * 0.01; // 积分抵扣后的金额
      } else {
        // 如果不使用积分抵扣
        return this.orders.orderTotal;
      }
    }
  },
  created() {
    this.user = this.$getSessionStorage('user');

    let url = `OrdersController/getOrdersById/${this.orderId}`;
    this.$axios.get(url).then(response => {
      this.orders = response.data.result;
    }).catch(error => {
      console.error(error);
    });

    url = `/Credit/TotalCredit/${this.user.userId}`;
    this.$axios.get(url).then(response => {
      this.totalpoints = response.data.result;
    }).catch(error => {
      console.error(error);
    });
  },
  methods: {
    toSuccess(orderId, num, totalpoints) {
      // 支付
      let url = `OrdersController/pay/${this.orderId}`;
      this.$axios.get(url).then(response => {
        console.log(response.data.result);
      }).catch(error => {
        console.error(error);
      });

      if (this.usePoints) {
        // 如果使用了积分抵扣
        let sub_number = Math.floor(totalpoints); // 积分抵扣订单金额的比率是100:1
        let url2 = `/Credit/PayoutByUserId/${this.user.userId}/${sub_number}`;
        this.$axios.post(url2).then(response => {
          console.log(response.data.result);
        }).catch(error => {
          console.error(error);
        });
      }

      // 增加积分
      let add_number = 20; // 用户每支付成功一笔订单可以获得20积分
      let url3 = `/Credit/RechargeByUserId/${this.user.userId}/${add_number}`;
      this.$axios.post(url3).then(response => {
        console.log(response.data.result);
      }).catch(error => {
        console.error(error);
      });

      this.$router.push({
        path: '/paySuccess',
        query: { orderId: this.orderId }
      });
    },
    detailetShow() {
      this.isShowDetailet = !this.isShowDetailet;
    }
  }
};
</script>

<style scoped>
	/****************** 总容器 ******************/
	.wrapper {
		width: 100%;
		height: 100%;
	}

	/****************** header部分 ******************/
	.wrapper header {
		width: 100%;
		height: 12vw;
		background-color: #0097FF;
		color: #fff;
		font-size: 4.8vw;

		position: fixed;
		left: 0;
		top: 0;
		z-index: 1000;

		display: flex;
		justify-content: center;
		align-items: center;
	}

	/****************** 订单信息部分 ******************/
	.wrapper h3 {
		margin-top: 12vw;
		box-sizing: border-box;
		padding: 4vw 4vw 0;

		font-size: 4vw;
		font-weight: 300;
		color: #999;
	}

	.wrapper .order-info {
		box-sizing: border-box;
		padding: 4vw;
		font-size: 4vw;
		color: #666;

		display: flex;
		justify-content: space-between;
		align-items: center;
	}

	.wrapper .order-info p:last-child {
		color: orangered;
	}

	/****************** 订单明细部分 ******************/
	.wrapper .order-detailet {
		width: 100%;
	}

	.wrapper .order-detailet li {
		width: 100%;
		box-sizing: border-box;
		padding: 1vw 4vw;

		display: flex;
		justify-content: space-between;
		align-items: center;
	}

	.wrapper .order-detailet li p {
		font-size: 3vw;
		color: #666;
	}

	/****************** 支付方式部分 ******************/
	.wrapper .payment-type {
		width: 100%;
	}

	.wrapper .payment-type li {
		width: 100%;
		box-sizing: border-box;
		padding: 4vw;

		display: flex;
		justify-content: space-between;
		align-items: center;
    color: #666;
	}

	.wrapper .payment-type li img {
		width: 33vw;
		height: 8.9vw;
	}

	.wrapper .payment-type li .fa-check-circle {
		font-size: 5vw;
		color: #38CA73;
	}

	.wrapper .payment-button {
		width: 100%;
		box-sizing: border-box;
		padding: 4vw;
	}

	.wrapper .payment-button button {
		width: 100%;
		height: 10vw;
		border: none;
		/*去掉外轮廓线*/
		outline: none;
		border-radius: 4px;
		background-color: #38CA73;
		color: #fff;
	}
</style>
